2000 V70 surging when blower turned on

banjones98 · Post by **banjones98** » 09 Mar 2010, 19:54

I just switched out a 2000 V70 motor...it runs fine but when I turn on the blower it surges all the time...even when driving. I first thought "blower" but theres no noise. Its as though the system is overloaded. Any suggestions?

Post by **cattledog** » 09 Mar 2010, 20:55

It's not clear from your post what motor you switched. The cars motor or the blower motor. Also whats surging the engine or the blower motor?

banjones98 · Post by **banjones98** » 10 Mar 2010, 16:41

Sorry the motor of the car surges when the blower fan motor runs. It's so bad I have to really mash the break at stops and when I'm driving you really feel it. I am not running the blower fan until I can figure it out and this is very unhandy this time of year

Post by **jblackburn** » 10 Mar 2010, 21:24

Uhhhhhhh...

Do your dash/headlights pulse with the car running? The only thing that I can think of tying the two together would be a bad voltage regulator on the alternator.